Steering wheel for automobile and method of fabricating the same
Inactive Publication Date: 2010-11-18
MIRAETEC
View PDF0 Cites 20 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Benefits of technology
[0029]The present invention is directed to solving the above and other problems of the related art, and an aspect of the invention is to provide a steering wheel for automobiles and a method of fabricating the same, which can replace a conventional wood-grain hydraulic transfer proces
Problems solved by technology
In this case, the rigid polyurethane foam provides some merits in terms of cushioning properties and non-slip to the steering wheel, but also provides a monotonous appearance and unpleasant tactile sensation.
However, although the handle cover slightly relieves the monotonous appearance and unpleasant tactile sensation of the current steering wheel, it entails an increase in thickness of the steering wheel, so that a driver cannot stably grip the steering wheel, thereby obstructing stable manipulation of the steering wheel.
The leather handle compensates for the aforementioned problems, but still provides problems of slipping and unpleasant appearance caused by accumulation of dirt from the hands of a driver after extended use.
As a result, the injection-molded surface of the ABS resin is too uneven to transfer the wood-grain film thereto.
However, even when the surface grin
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
example 1
[0106]Example 1 relates to a method of fabricating a steering wheel by inserting a plurality of pattern parts through application of pad printing during multi-stage injection molding with the mold as shown in FIG. 3.
[0107]The method of Example 1 generally includes preheating, formation of a primary injection-molded part, insertion of a primary pattern part, formation of a secondary injection-molded part, insertion of a secondary pattern part, formation of a tertiary injection-molded part, formation of polyurethane foam, formation of a protective coating, and leather sewing.
[0108]The preheating is performed to preheat a hub core 13 integrally connected to a metal frame 10 in a dryer.
[0109]For this operation, the hub core 13 integrally connected to the metal frame 10 is prepared.
[0110]The hub core 13 and the metal frame 10 are subjected to various examinations to determine whether they are suitable in terms of quality and other conditions for fabrication of a steering wheel.
[0111]Afte...
example 2
[0149]Example 2 relates to a method of fabricating a steering wheel 1 by inserting a vacuum deposition part 15 and a pattern part 17 through a combination of vacuum deposition and pad printing during multi-stage injection molding with the mold as shown in FIG. 4.
[0150]The method of Example 2 includes preheating, formation of a primary injection-molded part, insertion of a vacuum deposition part, formation of a secondary injection-molded part, insertion of a pattern part, formation of a tertiary injection-molded part, formation of polyurethane foam, formation of a protective coating, and leather sewing.
[0151]The preheating is performed to preheat a hub core 13 integrally connected to a metal frame 10 in a dryer, and is the same as in Example 1. Thus, a detailed description thereof will be omitted herein.
[0152]Here, an opaque resin for the primary injection-molded part 14 may be polycarbonate (PC). However, in Example 2, polyethylene terephthalate (PET) is used as the opaque resin for...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Property
Measurement
Unit
Temperature
aaaaa
aaaaa
Length
aaaaa
aaaaa
Time
aaaaa
aaaaa
Login to view more
Abstract
The present disclosure relates to a steering wheel for automobiles and a method of fabricating the same. The steering wheel is formed in multiple layers having a thickness difference of 2˜3 mm by multi-stage injection molding and has a pattern or picture between the layers to provide a luxurious and pleasant appearance. In the method, after being preheated in a dryer to remove moisture, a metal frame is subjected to primary to tertiary injection molding in a mold to form the multiple layers. Here, drying is performed to remove moisture from the surface of injection-molded parts to prevent deterioration in adherence and quality during the process. Here, the pattern or figure is inserted between the layers by pad printing or a combination of pad printing and vacuum deposition. The multi-stage injection molding allows various colors, patterns, and figures to be printed on injection-molded parts excluding the uppermost layer.
Description
CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit under 35 U.S.C. §119 of Korean Patent Application No. 10-2009-0042249, filed May 14, 2009, which is hereby incorporated by reference in its entirety.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a steering wheel for automobiles and a method of fabricating the same and, more particularly, to a steering wheel for automobiles and a method of fabricating the same, which can replace a conventional wood-grain hydraulic transfer process and includes forming a steering wheel in multiple layers having a thickness difference of 2˜3 mm by multi-stage injection molding and inserting a predetermined pattern or picture between the injection-molded layers to provide a luxurious and pleasant appearance.[0004]2. Description of the Related Art[0005]In general, a steering system is provided to motor vehicles to control a traveling direction of the vehicle, and includes a h...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more